Scheduling method for communication network supporting unlicensed band

Abstract

A scheduling method for a communication network supporting an unlicensed band is disclosed. An operation method of UE comprises the steps of: receiving, from a base station, an unlicensed band burst including a plurality of subframes in an unlicensed band; acquiring control information from the unlicensed band burst; and acquiring data from the unlicensed band burst on the basis of the control information. Therefore, the performance of the communication network can be improved.

The invention claimed is: 
     
       1. An operation method of a user equipment (UE) in a communication network, comprising:
 receiving, from a base station, downlink control information (DCI) through a subframe # n in a plurality of subframes included in a channel occupancy time; 
 obtaining, from the DCI, a first information element indicating a number of subframes that do not need to be detected by the UE among the plurality of subframes; and 
 performing communications with the base station in remaining subframe(s) except for the subframes indicated by the first information element within the channel occupancy time, 
 wherein the channel occupancy time is configured in an unlicensed band, and 
 wherein “n” is an integer. 
 
     
     
       2. The operation method according to  claim 1 , wherein the DCI further includes a second information element indicating a number of symbols occupied by a subframe # n+1 after the subframe # n in the channel occupancy time. 
     
     
       3. The operation method according to  claim 1 , wherein the DCI further includes at least one of a third information element indicating a length of the channel occupancy time, a fourth information element indicating a number of subframes remaining until an end point of the channel occupancy time, and a fifth information element indication whether the subframe # n is a partial subframe having a length less than 1 millisecond. 
     
     
       4. The operation method according to  claim 2 , wherein the number of symbols occupied by the subframe # n+1 is 3, 6, 9, 10, 11, 12, or 14. 
     
     
       5. The operation method according to  claim 1 , wherein a size of a start subframe in the channel occupancy time is less than 1 millisecond. 
     
     
       6. An operation method of a base station in a communication network, comprising:
 generating downlink control information (DCI) including a first information element indicating a number of subframes that do not need to be detected by a user equipment (UE) among a plurality of subframes included in a channel occupancy time; 
 transmitting, to the UE, the DCI through a subframe # n in the plurality of subframes; and 
 performing communications with the UE in remaining subframe(s) except for the subframes indicated by the first information element within the channel occupancy time, 
 wherein the channel occupancy time is configured in an unlicensed band, and 
 wherein “n” is an integer. 
 
     
     
       7. The operation method according to  claim 6 , wherein the DCI further includes a second information element indicating a number of symbols occupied by a subframe # n+1 after the subframe # n in the channel occupancy time. 
     
     
       8. The operation method according to  claim 6 , wherein the DCI further includes at least one of a third information element indicating a length of the channel occupancy time, a fourth information element indicating a number of subframes remaining until an end point of the channel occupancy time, and a fifth information element indicating whether the subframe # n is a partial subframe having a length less than 1 millisecond. 
     
     
       9. The operation method according to  claim 7 , wherein the number of symbols occupied by the subframe # n+1 is 3, 6, 9, 10, 11, 12, or 14. 
     
     
       10. The operation method according to  claim 6 , wherein a size of a start subframe in the channel occupancy time is less than 1 millisecond. 
     
     
       11. A user equipment (UE) in a communication network, comprising a processor, and a memory storing at least one instruction executed by the processor,
 wherein the at least one instruction is configured to: 
 receive, from a base station, downlink control information (DCI) through a subframe # n in a plurality of subframes included in a channel occupancy time; 
 obtain, from the DCI, a first information element indicating a number of subframes that do not need to be detected by the UE among the plurality of subframes; and 
 perform communications with the base station in remaining subframe(s) except for the subframes indicated by the first information element within the channel occupancy time, 
 wherein the channel occupancy time is configured in an unlicensed band, and 
 wherein “n” is an integer. 
 
     
     
       12. The UE according to  claim 11 , wherein the DCI further includes a second information element indicating whether the subframe # n is a partial subframe having a length less than 1 millisecond. 
     
     
       13. The UE according to  claim 11 , wherein the DCI further includes at least one of a third information element indicating a number of subframes that do not need to be detected by the UE among the plurality of subframes, a fourth information element indicating a length of the channel occupancy time, and a fifth information element indicating a number of subframes remaining until an end point of the channel occupancy time. 
     
     
       14. The UE according to  claim 11 , wherein the number of symbols occupied by the subframe # n+1 is 3, 6, 9, 10, 11, 12, or 14.